CLC number:
On-line Access: 2023-12-01
Received: 2023-03-28
Revision Accepted: 2023-09-18
Crosschecked: 0000-00-00
Cited: 0
Clicked: 385
Xuanfeng TONG, Zhihao JIANG, Yuan LI, Fan WU, Lin PENG, Taiwei YUE, Wei HONG. A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications[J]. Frontiers of Information Technology & Electronic Engineering, 1998, -1(-1): .
@article{title="A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications",
author="Xuanfeng TONG, Zhihao JIANG, Yuan LI, Fan WU, Lin PENG, Taiwei YUE, Wei HONG",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.2300214"
}
%0 Journal Article
%T A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications
%A Xuanfeng TONG
%A Zhihao JIANG
%A Yuan LI
%A Fan WU
%A Lin PENG
%A Taiwei YUE
%A Wei HONG
%J Journal of Zhejiang University SCIENCE C
%V -1
%N -1
%P
%@ 2095-9184
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2300214
TY - JOUR
T1 - A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications
A1 - Xuanfeng TONG
A1 - Zhihao JIANG
A1 - Yuan LI
A1 - Fan WU
A1 - Lin PENG
A1 - Taiwei YUE
A1 - Wei HONG
J0 - Journal of Zhejiang University Science C
VL - -1
IS - -1
SP -
EP -
%@ 2095-9184
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2300214
Abstract: In this paper, a low-profile dual-broadband dual-circularly-polarized (dual-CP) reflectarray (RA) is proposed and demonstrated, supporting independent beamforming for right-/left-handed CP waves at both K- and Ka-bands. Such functionality is achieved by incorporating multi-layered phase shifting elements individually operating in the K- and Ka-bands, which are then interleaved in a shared aperture, resulting in a cell thickness of only about 0.1λL. By rotating the designed K- and Ka-band elements around their own geometrical centers, the dual-CP waves in each band can be modulated separately. For reducing the overall profile, planar K-/Ka-band dual-CP feeds with a broad bandwidth are designed based on the magnetoelectric dipoles and multi-branch hybrid couplers. The planar feeds achieve bandwidths of about 32% and 26% at K- and Ka-bands with reflection magnitudes below -13 dB, an axial ratio smaller than 2 dB, and a gain variation of less than 1 dB. A proof-of-concept dual-band dual-CP RA integrated with the planar feeds is fabricated and characterized, which is capable of generating asymmetrically distributed dual-band dual-CP beams. The measured peak gain values of the beams are around 24.3 and 27.3 dBic, with joint gain variation < 1 dB and axial ratio < 2 dB bandwidths wider than 20.6% and 14.6% at the lower-band and higher-band, respectively. The demonstrated dual-broadband dual-CP RA with four degrees of freedom of beamforming could be a promising candidate for space and satellite communications.
Open peer comments: Debate/Discuss/Question/Opinion
<1>